package org.example.Demo;

/**
 * @className: Test
 * @author: 芃
 * @description:
 * @date: 2024/5/16 17:21
 */
public class Test {
    public static void main(String[] args) {
        A a1 = new A();
        A a2 = new B();
        A a3 = new C();
        System.out.println("hello world");
    }
}
